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<div class="header">
  <div class="headertitle"><div class="title">cvbspalettedcontroller.cpp</div></div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - &lt;http://www.fabgl.com&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">  Copyright (c) 2019-2022 Fabrizio Di Vittorio.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment">  All rights reserved.</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"></span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"></span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment">* Please contact fdivitto2013@gmail.com if you need a commercial license.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"></span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"></span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment">* This library and related software is available under GPL v3.</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"></span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment">  FabGL is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">  it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">  the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">  (at your option) any later version.</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"></span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">  FabGL is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment">  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment">  GNU General Public License for more details.</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"></span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment">  You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment">  along with FabGL.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> */</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#include &lt;stdarg.h&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="preprocessor">#include &quot;freertos/FreeRTOS.h&quot;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#include &quot;freertos/task.h&quot;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#include &quot;<a class="code" href="fabutils_8h.html">fabutils.h</a>&quot;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#include &quot;<a class="code" href="cvbspalettedcontroller_8h.html">cvbspalettedcontroller.h</a>&quot;</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="preprocessor">#pragma GCC optimize (&quot;O2&quot;</span>)</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="keyword">namespace </span>fabgl {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment">/*************************************************************************************/</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment">/* CVBSPalettedController definitions */</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="keyword">volatile</span> uint8_t * * CVBSPalettedController::s_viewPort;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="keyword">volatile</span> uint8_t * * CVBSPalettedController::s_viewPortVisible;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>CVBSPalettedController::CVBSPalettedController(<span class="keywordtype">int</span> columnsQuantum, <a class="code hl_enumeration" href="group___enumerations_ga03403b592cc00776d70bc5ad6c177276.html#ga03403b592cc00776d70bc5ad6c177276">NativePixelFormat</a> nativePixelFormat, <span class="keywordtype">int</span> viewPortRatioDiv, <span class="keywordtype">int</span> viewPortRatioMul)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>  : CVBSBaseController(),</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    m_columnsQuantum(columnsQuantum),</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    m_nativePixelFormat(nativePixelFormat),</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    m_viewPortRatioDiv(viewPortRatioDiv),</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    m_viewPortRatioMul(viewPortRatioMul)</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>{</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>  m_palette = (RGB222*) heap_caps_malloc(<span class="keyword">sizeof</span>(RGB222) * getPaletteSize(), MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>}</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>CVBSPalettedController::~CVBSPalettedController()</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>{</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>  heap_caps_free(m_palette);</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>}</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="keywordtype">void</span> CVBSPalettedController::init()</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>{</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>  CVBSBaseController::init();</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>  m_taskProcessingPrimitives = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>  m_processPrimitivesOnBlank = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>  m_primitiveExecTask        = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>}</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="keywordtype">void</span> CVBSPalettedController::end()</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>{</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>  <span class="keywordflow">if</span> (m_primitiveExecTask) {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>    vTaskDelete(m_primitiveExecTask);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>    m_primitiveExecTask = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    m_taskProcessingPrimitives = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>  }</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>  CVBSBaseController::end();</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>}</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="keywordtype">void</span> CVBSPalettedController::suspendBackgroundPrimitiveExecution()</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>{</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>  CVBSBaseController::suspendBackgroundPrimitiveExecution();</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>  <span class="keywordflow">while</span> (m_taskProcessingPrimitives)</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>    ;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>}</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment">// make sure view port width is divisible by m_columnsQuantum</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="keywordtype">void</span> CVBSPalettedController::checkViewPortSize()</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>{</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>  m_viewPortWidth &amp;= ~(m_columnsQuantum - 1);  </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>}</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="keywordtype">void</span> CVBSPalettedController::allocateViewPort()</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>{</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>  CVBSBaseController::allocateViewPort(MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL, m_viewPortWidth / m_viewPortRatioDiv * m_viewPortRatioMul);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>}</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="keywordtype">void</span> CVBSPalettedController::freeViewPort()</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>{</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>  CVBSBaseController::freeViewPort();</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>}</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="keywordtype">void</span> CVBSPalettedController::setResolution(CVBSParams <span class="keyword">const</span> * params, <span class="keywordtype">int</span> viewPortWidth, <span class="keywordtype">int</span> viewPortHeight, <span class="keywordtype">bool</span> doubleBuffered)</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>{</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>  CVBSBaseController::setResolution(params, viewPortWidth, viewPortHeight, doubleBuffered);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>  s_viewPort        = m_viewPort;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>  s_viewPortVisible = m_viewPortVisible;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>  <span class="comment">// fill view port</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; m_viewPortHeight; ++i)</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>    memset((<span class="keywordtype">void</span>*)(m_viewPort[i]), 0, m_viewPortWidth / m_viewPortRatioDiv * m_viewPortRatioMul);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>  setupDefaultPalette();</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>  updateRGB2PaletteLUT();</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>  calculateAvailableCyclesForDrawings();</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>  <span class="keywordflow">if</span> (m_primitiveExecTask == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>    xTaskCreatePinnedToCore(primitiveExecTask, <span class="stringliteral">&quot;&quot;</span> , <a class="code hl_define" href="fabglconf_8h_a91ceddd39f026c4f78b41ef8353d245b.html#a91ceddd39f026c4f78b41ef8353d245b">FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_STACK_SIZE</a>, <span class="keyword">this</span>, <a class="code hl_define" href="fabglconf_8h_a07d5320881f69a2537e5ee14788e1b53.html#a07d5320881f69a2537e5ee14788e1b53">FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_PRIORITY</a>, &amp;m_primitiveExecTask, CoreUsage::quietCore());</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>  }</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>  resumeBackgroundPrimitiveExecution();</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>  </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>  run();</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>}</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span> </div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="keywordtype">int</span> CVBSPalettedController::getPaletteSize()</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>{</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>  <span class="keywordflow">switch</span> (nativePixelFormat()) {</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>    <span class="keywordflow">case</span> NativePixelFormat::PALETTE2:</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>      <span class="keywordflow">return</span> 2;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>    <span class="keywordflow">case</span> NativePixelFormat::PALETTE4:</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>      <span class="keywordflow">return</span> 4;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>    <span class="keywordflow">case</span> NativePixelFormat::PALETTE8:</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>      <span class="keywordflow">return</span> 8;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>    <span class="keywordflow">case</span> NativePixelFormat::PALETTE16:</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>      <span class="keywordflow">return</span> 16;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>    <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>  }</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>}</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment">// rebuild m_packedRGB222_to_PaletteIndex</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="keywordtype">void</span> CVBSPalettedController::updateRGB2PaletteLUT()</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>{</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>  <span class="keyword">auto</span> paletteSize = getPaletteSize();</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> r = 0; r &lt; 4; ++r)</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> g = 0; g &lt; 4; ++g)</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> b = 0; b &lt; 4; ++b) {</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>        <span class="keywordtype">double</span> H1, S1, V1;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>        rgb222_to_hsv(r, g, b, &amp;H1, &amp;S1, &amp;V1);</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>        <span class="keywordtype">int</span> bestIdx = 0;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>        <span class="keywordtype">int</span> bestDst = 1000000000;</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; paletteSize; ++i) {</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>          <span class="keywordtype">double</span> H2, S2, V2;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>          rgb222_to_hsv(m_palette[i].<a class="code hl_variable" href="displaycontroller_8h_ad6dca68b61d96e60ca0062e00390ba9f.html#ad6dca68b61d96e60ca0062e00390ba9f">R</a>, m_palette[i].<a class="code hl_variable" href="displaycontroller_8h_aae2a690e4df0bce516938666009b5ea6.html#aae2a690e4df0bce516938666009b5ea6">G</a>, m_palette[i].<a class="code hl_variable" href="displaycontroller_8h_a7c7fb36d372d349a62c14f1e6c7337ea.html#a7c7fb36d372d349a62c14f1e6c7337ea">B</a>, &amp;H2, &amp;S2, &amp;V2);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>          <span class="keywordtype">double</span> AH = H1 - H2;</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>          <span class="keywordtype">double</span> AS = S1 - S2;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>          <span class="keywordtype">double</span> AV = V1 - V2;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>          <span class="keywordtype">int</span> dst = AH * AH + AS * AS + AV * AV;</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>          <span class="keywordflow">if</span> (dst &lt;= bestDst) {  <span class="comment">// &quot;&lt;=&quot; to prioritize higher indexes</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>            bestIdx = i;</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>            bestDst = dst;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>            <span class="keywordflow">if</span> (bestDst == 0)</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>              <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>          }</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>        }</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>        m_packedRGB222_to_PaletteIndex[r | (g &lt;&lt; 2) | (b &lt;&lt; 4)] = bestIdx;</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>      }</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>}</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span> </div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span> </div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">// calculates number of CPU cycles usable to draw primitives</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="keywordtype">void</span> CVBSPalettedController::calculateAvailableCyclesForDrawings()</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>{</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span>  <span class="keywordtype">int</span> availtime_us;</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span> </div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>  <span class="keywordflow">if</span> (m_processPrimitivesOnBlank) {</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>    <span class="comment">// allowed time to process primitives is limited to the vertical blank. Slow, but avoid flickering</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>    availtime_us = params()-&gt;blankLines * params()-&gt;line_us;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>    <span class="comment">// allowed time is the half of an entire frame. Fast, but may flick</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>    availtime_us = params()-&gt;fieldLines * params()-&gt;line_us;</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>  }</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>  </div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>  availtime_us = params()-&gt;blankLines * params()-&gt;line_us;</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span> </div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>  m_primitiveExecTimeoutCycles = getCPUFrequencyMHz() * availtime_us;  <span class="comment">// at 240Mhz, there are 240 cycles every microsecond</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>}</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span> </div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span> </div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">// we can use getCycleCount here because primitiveExecTask is pinned to a specific core (so cycle counter is the same)</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">// getCycleCount() requires 0.07us, while esp_timer_get_time() requires 0.78us</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="keywordtype">void</span> CVBSPalettedController::primitiveExecTask(<span class="keywordtype">void</span> * arg)</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>{</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>  <span class="keyword">auto</span> ctrl = (CVBSPalettedController *) arg;</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span> </div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>    <span class="keywordflow">if</span> (!ctrl-&gt;m_primitiveProcessingSuspended) {</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>      <span class="keyword">auto</span> startCycle = ctrl-&gt;backgroundPrimitiveTimeoutEnabled() ? getCycleCount() : 0;</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>      Rect updateRect = Rect(SHRT_MAX, SHRT_MAX, SHRT_MIN, SHRT_MIN);</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>      ctrl-&gt;m_taskProcessingPrimitives = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>      <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>        Primitive prim;</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>        <span class="keywordflow">if</span> (ctrl-&gt;getPrimitive(&amp;prim, 0) == <span class="keyword">false</span>)</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>          <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>        ctrl-&gt;execPrimitive(prim, updateRect, <span class="keyword">false</span>);</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>        <span class="keywordflow">if</span> (ctrl-&gt;m_primitiveProcessingSuspended)</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>          <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>      } <span class="keywordflow">while</span> (!ctrl-&gt;backgroundPrimitiveTimeoutEnabled() || (startCycle + ctrl-&gt;m_primitiveExecTimeoutCycles &gt; getCycleCount()));</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>      ctrl-&gt;showSprites(updateRect);</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>      ctrl-&gt;m_taskProcessingPrimitives = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>    }</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span> </div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>    <span class="comment">// wait for vertical sync</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>    ulTaskNotifyTake(pdTRUE, portMAX_DELAY);</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>  }</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span> </div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>}</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span> </div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span> </div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="keywordtype">void</span> CVBSPalettedController::swapBuffers()</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>{</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>  CVBSBaseController::swapBuffers();</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>  s_viewPort        = m_viewPort;</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>  s_viewPortVisible = m_viewPortVisible;</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>}</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span> </div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span> </div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="keywordtype">bool</span> CVBSPalettedController::suspendDoubleBuffering(<span class="keywordtype">bool</span> value)</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>{</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>  <span class="keyword">auto</span> prevValue = CVBSBaseController::suspendDoubleBuffering(value);</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span>  <span class="keywordflow">if</span> (prevValue != value &amp;&amp; isDoubleBuffered()) {</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>    s_viewPort        = m_viewPort;</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>    s_viewPortVisible = m_viewPortVisible;</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>  }</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>  <span class="keywordflow">return</span> prevValue;</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span>}</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span> </div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span> </div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span> </div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>} <span class="comment">// end of namespace</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span> </div>
<div class="ttc" id="acvbspalettedcontroller_8h_html"><div class="ttname"><a href="cvbspalettedcontroller_8h.html">cvbspalettedcontroller.h</a></div><div class="ttdoc">This file contains fabgl::CVBSPalettedController definition.</div></div>
<div class="ttc" id="adisplaycontroller_8h_a7c7fb36d372d349a62c14f1e6c7337ea_html_a7c7fb36d372d349a62c14f1e6c7337ea"><div class="ttname"><a href="displaycontroller_8h_a7c7fb36d372d349a62c14f1e6c7337ea.html#a7c7fb36d372d349a62c14f1e6c7337ea">B</a></div><div class="ttdeci">uint8_t B</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00002">displaycontroller.h:2</a></div></div>
<div class="ttc" id="adisplaycontroller_8h_aae2a690e4df0bce516938666009b5ea6_html_aae2a690e4df0bce516938666009b5ea6"><div class="ttname"><a href="displaycontroller_8h_aae2a690e4df0bce516938666009b5ea6.html#aae2a690e4df0bce516938666009b5ea6">G</a></div><div class="ttdeci">uint8_t G</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00001">displaycontroller.h:1</a></div></div>
<div class="ttc" id="adisplaycontroller_8h_ad6dca68b61d96e60ca0062e00390ba9f_html_ad6dca68b61d96e60ca0062e00390ba9f"><div class="ttname"><a href="displaycontroller_8h_ad6dca68b61d96e60ca0062e00390ba9f.html#ad6dca68b61d96e60ca0062e00390ba9f">R</a></div><div class="ttdeci">uint8_t R</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00000">displaycontroller.h:0</a></div></div>
<div class="ttc" id="afabglconf_8h_a07d5320881f69a2537e5ee14788e1b53_html_a07d5320881f69a2537e5ee14788e1b53"><div class="ttname"><a href="fabglconf_8h_a07d5320881f69a2537e5ee14788e1b53.html#a07d5320881f69a2537e5ee14788e1b53">FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_PRIORITY</a></div><div class="ttdeci">#define FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_PRIORITY</div><div class="ttdef"><b>Definition:</b> <a href="fabglconf_8h_source.html#l00150">fabglconf.h:150</a></div></div>
<div class="ttc" id="afabglconf_8h_a91ceddd39f026c4f78b41ef8353d245b_html_a91ceddd39f026c4f78b41ef8353d245b"><div class="ttname"><a href="fabglconf_8h_a91ceddd39f026c4f78b41ef8353d245b.html#a91ceddd39f026c4f78b41ef8353d245b">FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_STACK_SIZE</a></div><div class="ttdeci">#define FABGLIB_VGAPALETTEDCONTROLLER_PRIMTASK_STACK_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="fabglconf_8h_source.html#l00146">fabglconf.h:146</a></div></div>
<div class="ttc" id="afabutils_8h_html"><div class="ttname"><a href="fabutils_8h.html">fabutils.h</a></div><div class="ttdoc">This file contains some utility classes and functions.</div></div>
<div class="ttc" id="agroup___enumerations_ga03403b592cc00776d70bc5ad6c177276_html_ga03403b592cc00776d70bc5ad6c177276"><div class="ttname"><a href="group___enumerations_ga03403b592cc00776d70bc5ad6c177276.html#ga03403b592cc00776d70bc5ad6c177276">fabgl::NativePixelFormat</a></div><div class="ttdeci">NativePixelFormat</div><div class="ttdoc">This enum defines the display controller native pixel format.</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00430">displaycontroller.h:430</a></div></div>
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